Neurons Unit Flashcards
Hypoglossal Nerve
Speaking, Chewing, Swallowing
Parietal Lobe
Interpret sensor input to control body movements.
Occipital Lobe
Vision
Temporal Lobe
Memory + Emotions
Corpus Callosum
Connect left + right hemispheres
“Big C”
Basal Ganglia
Regulates Movement
(Left side cerebrum, below corpus Callasum) `
Thalamus
Organizes Sensory info
Iris
Colored Part
Cerebrum
Voluntary Activity of the Brain
Hippocompus
Memory
Optic Nerve
Vision
Basal Tears
Happen all the time
Reflex tears
Ex. Cutting an onion or Yawning
Emotional Tears
Releases cortisol
Improves mood +vitals
Lacrimal Glands
Produces tears that drain into nasal cavity
(Lubricates eye, kills bacteria)
Conjunciva
Covering around eye +Under eyelids
Action Potential
Resting: - 70mv
Depolarization: -70_______ Positive, sodium enters
Repolarization : - positive _______-70mv, potassium out.
Vitreous Humor
Fluid that supports internal parts larger, posterior chamber
Retina
Vision receptor
Optic Disc
Where nerve fibers leave the eye, blind spot
Transverse Fissure
Separates cerebrum from cerebellum.
Longitudinal Fissure
Separates right +left lobes of the brain.
Olfactory nerve
Smell
Limbic System
Emotions
Microglia
Maintain health of nervous system
Brain Stem
Connects spinal cord to the rest of the brain.
Pons
Mostly nerve fibers.
“Bridge”
Medulla oblongata
Controls heartbeat, respiratory rate, vomiting, sneezing, and coughing.
Spinal cord
Connects brain to rest of body
Cerebellum
Controls muscle activities
Balance, equilibrium and posture.
Dura Mater
Thickest, top layer of meninges
Pia mater
Immediately on spiral cord and brain
Bottom layer
Arachnoid Layer
Spider-like fibers
Middle layer
Subdural Space
Contains interstitial fluid between dura mater and arachnoid layer
Subarachnoid Space
Contains cerebrospinal fluid between the coracoid layer and pro mater
Ependymal
Line cavities on CNS
more cerebro-spinal fluid
Lens
Focusing
Vagus nerve
Carry sensory impulses from throat, esophagus, thorax, and abdomen to the brain, hear, muscles, and glands.
Trigeminal Nerve
Sensory input from face
Trochlear Nerve
Eye movement
Accessory Nerve
Carry impulses to muscles of throat, neck , and back.
Pupil
Opening for light to enter
Ciliary Body
Holds lens in place
Facial Nerve
Carry motor impulses for facial expressions tear + salivary glands
Cornea
Focuses light protects eye
Optic Nerve
Transmits visual from eye to brain
Aqueous Humor
Liquid surrounding lens smaller, anterior chamber
Oligodendrocytes + Schwann Cells
Make myelin sheath
Astrocytes + Satellite Cells
Feed + care for neurons
Oculomotors Nerve
Control light entering eye
Abducens Nerve
Abducts eye from midline
Glossopharyngeal nerve
Tongue +throat
Vestibulochlear Nerve
Hearing “balance
Sclera
White of the eye
Attach eye muscles
Back of eye
Choroid Coat
Contains blood vessels
Hypothalamus
Coordinates automatic functions of the body
Homeostasis
Amygdoala
Fear and pleasure
Frontal lobe
Motor behavior